Category Order could not understand your category HTML. Please do the following:

• Disable all plugins except for category order to see if some other plugin is causing the problem. If the problem goes away, re-enable each plugin until you find the incompatible one.
• Try switching to a different theme, like the WordPress default theme.

Once you have tried the above steps, email david@coppit.org with the results of these debugging steps. Also include the following information:

Original HTML:
<li class="cat-item cat-item-28 current-cat"><a href="https://blogs.bootsnall.com/Sean/category/africa" >Africa</a> (1)
</li>
<li class="cat-item cat-item-1330"><a href="https://blogs.bootsnall.com/Sean/category/friends" >Friends</a> (1)
</li>
<li class="cat-item cat-item-41"><a href="https://blogs.bootsnall.com/Sean/category/africa/tanzania/mt-kilimanjaro" >Mt Kilimanjaro</a> (1)
</li>
<li class="cat-item cat-item-93"><a href="https://blogs.bootsnall.com/Sean/category/north-america/oregon" >Oregon</a> (1)
</li>
<li class="cat-item cat-item-8"><a href="https://blogs.bootsnall.com/Sean/category/north-america/oregon/portland" >Portland</a> (1)
</li>
<li class="cat-item cat-item-3"><a href="https://blogs.bootsnall.com/Sean/category/africa/tanzania" >Tanzania</a> (1)
</li>
<li class="cat-item cat-item-132"><a href="https://blogs.bootsnall.com/Sean/category/travel" >Travel</a> (50)
</li>

Processed HTML:
<li class="cat-item cat-item-28 current-cat"><a href="https://blogs.bootsnall.com/Sean/category/africa" >Africa</a> (1)
</li>
<li class="cat-item cat-item-1330"><a href="https://blogs.bootsnall.com/Sean/category/friends" >Friends</a> (1)
</li>
<li class="cat-item cat-item-41"><a href="https://blogs.bootsnall.com/Sean/category/africa/tanzania/mt-kilimanjaro" >Mt Kilimanjaro</a> (1)
</li>
<li class="cat-item cat-item-93"><a href="https://blogs.bootsnall.com/Sean/category/north-america/oregon" >Oregon</a> (1)
</li>
<li class="cat-item cat-item-8"><a href="https://blogs.bootsnall.com/Sean/category/north-america/oregon/portland" >Portland</a> (1)
</li>
<li class="cat-item cat-item-3"><a href="https://blogs.bootsnall.com/Sean/category/africa/tanzania" >Tanzania</a> (1)
</li>
<li class="cat-item cat-item-132"><a href="https://blogs.bootsnall.com/Sean/category/travel" >Travel</a> (50)
</li>

Category pattern:
/http\:\/\/blogs\.bootsnall\.com\/Sean.*?\/category\/(?:[^\/"]+\/)*([^\/"]+)/

Items:
Array
(
    [0] => <li class="cat-item cat-item-28 current-cat"><a href="https://blogs.bootsnall.com/Sean/category/africa" >Africa</a> (1) </li>
    [1] => <li class="cat-item cat-item-1330"><a href="https://blogs.bootsnall.com/Sean/category/friends" >Friends</a> (1) </li>
    [2] => <li class="cat-item cat-item-41"><a href="https://blogs.bootsnall.com/Sean/category/africa/tanzania/mt-kilimanjaro" >Mt Kilimanjaro</a> (1) </li>
    [3] => <li class="cat-item cat-item-93"><a href="https://blogs.bootsnall.com/Sean/category/north-america/oregon" >Oregon</a> (1) </li>
    [4] => <li class="cat-item cat-item-8"><a href="https://blogs.bootsnall.com/Sean/category/north-america/oregon/portland" >Portland</a> (1) </li>
    [5] => <li class="cat-item cat-item-3"><a href="https://blogs.bootsnall.com/Sean/category/africa/tanzania" >Tanzania</a> (1) </li>
    [6] => <li class="cat-item cat-item-132"><a href="https://blogs.bootsnall.com/Sean/category/travel" >Travel</a> (50) </li>
)